How to tell if the TV power supply is bad-easy ways

Having a bad TV power supply can be the most boring part of staying at home. You can imagine sitting all day long just bored with nothing to keep you busy. To always be on the positive side, you need to know how to check and fix this kind of problem at home without contacting a professional. Unfortunately, the process of getting to track this given problem is usually not as easy as it may seem.

However, you can not sit all day and not subject yourself to fixing the problem just because the task is kind of tough.  There are various solutions to help you track the problem and even fix it.  The very most advisable solution is troubleshooting your TV. This article will help you track all the given issues and fix them out with ease.

How to examine the condition of your power supplyhow to tell if tv power supply is bad

  • Step 1: Check your power cord

Make sure your power cord is tightly connected to the port at the TV’s back, and it is safely connected to the socket. If you have a media device, a firestick, a Blu-Ray player or even a cable box, it is advisable to use an extension. All of these devices will be connected from the same point of power supply. Ensure the connections are tight enough.

You should now test your socket whether it is working to avoid inconveniences later. First, ensure that no socket is accidentally flipped and check for any scratch on the power cord. If everything is in place, then you are good to go. If not, you need to find a specialist to fix the problem.

  • Step 2: Connect the TV to a different single source of power

If you connect your TV to an independent source of power, you can easily tell whether there is any problem with the supply of power. If your TV will work, then it is evident that the problem is not caused by the TV but by the power outlets.

If an inconsistent flickering is caused on the TV by the power supply, connect a lamp to the outlet and observe whether the bulb shows less power. If the power is just consistent, do not hesitate to contact a repairer since the problem could be extreme.

After you are done checking the power supply condition, and still you cannot find the problem, you can test your supply by using a multimeter to eliminate any doubt.

How to test TV’s power supply using a multimeterHow to test TV’s power supply using a multimeter

It is always advisable to check on your TV’s power supply condition even before spotting any problem. The best way to test it is by using a multimeter. It is easier, safer and offers accurate results. However, before handling this task, you need to know some skills in operating this multimeter for the reliability of your results and your safety.

Steps to follow when using a multimeter;Steps to follow when using a multimeter

Step 1: Understand all the safety precautions

As mentioned earlier, this is a risky task, so you need to know, understand, and apply all the safety precautions. The essential precautions are as follows;

  1. Before you start any process, switch off all the power sources and after you are done, switch off your device. Do not ignore switching off the device just because the power source is off.
  2. You should by any means not wear jewellery on your hand, mostly when working with devices of a high voltage. This is because jewellery can easily cause electrocution.
  3. Get to understand any weird smell that comes your way. Then, in case of smoke and smell, give your device some time to cool and replace it.
  4. Know the time to stop carrying out the test

Step 2: Check for any overloaded outlets

Your device should not be connected to an overloaded outlet, for example, where the driers, refrigerators, microwaves and any machine that consumes a lot of power is connected. Instead, television should be connected to its socket for a better supply of power.

Step 3: Cable connection

You should connect the TV’s power cable to your socket and check whether the connection is tight. Then, switch on the socket and make sure that the energy flow is smooth. If it flows smoothly, continue to the next steps as this does not assure proper functioning of the power supply.

Step 4: Set the multimeter

Turn your multimeter on and set it to DC volts. It should range at least 10.00V. Test every pin as the voltage is still on the connector to observe proper whether the lines show a correct voltage. Terminate the pins as required.

Step 5: Take note of the data

If the voltage is above the required level, there must be a problem with the supply of power, and it needs to be replaced with immediate effect. Still, if the voltage is at the required level, there is no problem with the power supply, and you need to check for other problems.

Step 6: Complete the connection

As earlier mentioned, the TV should be connected to an independent supply of energy to avoid overloading. Keenly observe the flow of the AC.  If your TV works, then it means the power supply is fine, but when the cords are taken out of the energy socket, your power supply is not working properly.

Step 7: Check for any fluctuations

If your TV’s screen is still flickering, connect a lamp and as you carry out the test with your multimeter. If it also flickers, there is a high possibility that you have a power fluctuation, and it needs to be checked immediately.


You should always maintain your TV and its power supply. You need to always check on their function ability as many times as possible to avoid rushing at the last minute.  By frequently checking it, you are guaranteed that it will last for a prolonged period without experiencing problems here and there. In addition, testing your TV’s power supply allows you predict the stay of your TV without problems.

In circumstances where you are confused about which action to take, whether replacing or testing their functioning, it is advisable to contact a professional to make your work easier. The above steps should also help you know the condition of your TV’s power supply with ease. Always follow the precautions to the maximum for your good.

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